Finding the Fourth Proportional to 78,307.62, 108,064.86 and 42,497.62

Step by Step Solution

1. Step 1: Write the proportion equation
   78,307.62 : 108,064.86 = 42,497.62 : x
2. Step 2: Convert to fraction form
   78,307.62/108,064.86 = 42,497.62/x
3. Step 3: Cross multiply
   78,307.62x = 108,064.86 × 42,497.62
4. Step 4: Simplify right side
   78,307.62x = 4,592,499,355.63
5. Step 5: Solve for x
   x = 4,592,499,355.63/78,307.62
6. Step 6: Final answer
   x = 58,646.90